How Eunuchs Ruled China for 2000 Years

The Eunuch System in Ancient China

China’s eunuch system was one of the most unique features of imperial court politics. Its origins and development reveal a lot about how emperors consolidated power and how that power shifted over time. Here’s the lowdown on where it came from and how it changed:

1. Origins: Pre-Qin Era (Shang/Zhou to Warring States Period)

1. Early “Huan” weren’t all castrated The term “huan” (宦) originally meant officials serving inside the palace, and not all were eunuchs. Records show palace attendants existed during the Shang and Zhou dynasties, but castration wasn’t yet a formal practice.

• Rites of Zhou mentions: “Yanren” (阉人, castrated men) held low-ranking jobs like guarding gates or relaying orders.

2. Castration becomes systematic

• Keeping the harem “pure”: To ensure royal bloodlines stayed legitimate, rulers started using eunuchs (called “siren”) to serve the imperial harem.
• Punishment turned recruitment: Castration began as a punishment for prisoners of war or criminals (known as “gongxing” or palace punishment), later becoming a source of palace staff.
• Warring States period: Eunuchs became common in royal courts. Records of the Grand Historian notes positions like “Master of the Palace Attendants” in states like Zhao.

2. Formalization: Qin & Han Dynasties

1. Qin Dynasty: Eunuchs enter politics Zhao Gao (Qin Shi Huang’s favorite) became Director of the Imperial Charioteers, controlling state secrets. Under Qin Er Shi, his power grew massive — setting the first example of eunuchs meddling in state affairs.
2. Han Dynasty: Power expands

• New posts created: Jobs like “Palace Attendant-in-Ordinary” (中常侍) were held only by eunuchs, handling decrees and confidential documents.
• Counterbalancing relatives: Emperor Wu used eunuchs (like Sima Qian as Palace Secretary) to weaken the empress’s family. By the mid-Eastern Han, eunuchs gained huge influence as emperors relied on them, sparking brutal power struggles with imperial relatives (e.g., the “Rebellion of the Ten Attendants”).
• First major takeover: Late Eastern Han eunuchs like Cao Jie and Zhang Rang manipulated emperor appointments, speeding up the dynasty’s collapse.

3. Shifts: Sui/Tang to Song/Yuan Dynasties

1. Sui & Tang: Peak eunuch power

• Tang eunuchs controlled the army: Emperor Xuanzong’s “Palace Domestic Service” (内侍省) put eunuchs like Gao Lishi in charge. After the An Lushan Rebellion, eunuchs became Military Commissioners (枢密使) and Army Supervisors (监军使), commanding the elite Shence Army.
• Making and unmaking emperors: Tang eunuchs installed 7 emperors (e.g., Qiu Shiliang deposed Emperor Wenzong).
• Battling officials: Eunuchs clashed with chancellors and regional warlords in three-way fights (e.g., the “Sweet Dew Incident”).

2. Song Dynasty: Power curbed

• Founding emperors restricted them: Eunuchs were banned from politics and military command, limited to palace duties.
• Some exceptions: Figures like Tong Guan (who led armies against the Liao) and Liang Shicheng (handling decrees) held power, but overall influence shrank drastically from Tang levels.

3. Yuan Dynasty: Ethnic slant

Mongol rulers used their “Kheshig” (royal guards) to run the palace. Most eunuchs came from Goryeo (Korea) or Central Asia and had low status.

4. Height and Decline: Ming & Qing Dynasties

1. Ming Dynasty: Total dominance

• Systematized bureaucracy: The “Twenty-Four Offices” were established, with the Directorate of Ceremonial (司礼监) holding top power. Eunuch numbers swelled to tens of thousands.
• Power to approve & spy: Eunuchs like Wang Zhen and Liu Jin “endorsed memorials in red ink” (批红) for emperors. They also ran spy agencies (Eastern and Western Depots) to monitor officials.
• Superstar eunuchs: Zheng He (of voyages fame), Wang Zhi (Western Depot), and Wei Zhongxian (the “Nine Thousand Year Lord”) held immense sway.

2. Qing Dynasty: Fade-out

• Tight restrictions: Kangxi capped eunuchs at 3,000, banning them from politics or leaving Beijing.
• Reduced to servants: The Palace Domestic Service (敬事房) managed them. Even favorites like An Dehai and Li Lianying stayed out of government.
• End of the system: The Qing fell in 1912, abolishing the system. Sun Yaoting, China’s last eunuch, died in 1996.

5. Why It Worked (and Didn’t)

1. The emperor’s personal tool

• Eunuchs, with no family ties, helped emperors check powerful relatives or ministers.
• Dependent on imperial favor, they won trust easily — but without checks, they became a double-edged sword.

2. Twisted humanity, corrupted power

• Physical trauma and social scorn drove many to seize power through corruption or factional fights.
• A cruel, unnatural system that lasted 2,000 years — proof of imperial autocracy’s brutality.

The eunuch system started as a practical palace solution but warped into a political monster through imperial power struggles. Its rise and fall spanned China’s entire imperial age, born from autocracy and ultimately exposing its rot. This unique group’s existence shows how power structures crush humanity and create doomed systems. Though gone with the empire, the eunuch system’s lessons about unchecked power still ring true today.

Check the YouTube video for more detail.